/*
 * Copyright 2012 Finbudget.com
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package finbudget.client.general;

import java.util.HashMap;
import java.util.Map;

import com.google.inject.Inject;

import finbudget.client.general.NodeSuggestionOracle.NodeSuggestionOracleFactory;
import finbudget.client.lists.GetListOfItems.ListType;

public class OraclesManager {
	private Map<ListType, NodeSuggestionOracle> map;
	private final NodeSuggestionOracleFactory oraclesFactory;

	@Inject
	protected OraclesManager(NodeSuggestionOracleFactory oraclesFactory) {
		map = new HashMap<ListType, NodeSuggestionOracle>();
		this.oraclesFactory = oraclesFactory;
	}

	public NodeSuggestionOracle getOracle(ListType listType) {
		NodeSuggestionOracle oracle = map.get(listType);
		if (oracle == null) {
			// Oracle not found.
			oracle = oraclesFactory.create(listType);
			map.put(listType, oracle);
		}
		return oracle;
	}
}
